I use an alpine stars backpack with a motorcycle helmet pouch....works great. I use it all the time when I go pick up the girlfriend.
That guy was a badass. He could make a pipe bomb from a tampon, a stick of gum, and banana peel!+2 and it works fine for a full face helmet.
Those nets are awesome and can turn anyone into the MacGyver of storage!!
Yeah I totally make the gf wear the backpack after I pick her up lolheck yeah, I like the bag idea too, cuz like you said she can wear it once I pick her up and hold misc stuff